Machine for punching roof material.



P. e. GARDNER. MACHINE FO R PU NCH|NG ROOF MATERIAL.

APPLICATION FILED MAY 24. I915.

1,191,297. Patented July 18; 1916.-

. weather-proof waterproof material having- UNITED STATES PATENT OFFICE. PERRY GARDNER, or RUrHEREoRn, iiE'w JERSEY, assIeNoR T0 Fimx'om MANU- FACTUBING COMPANY, or RUTHERFORD, NEW JERSEY, A CO PO ATION or NEW JERSEY. I

MACHINE Ii'OR rUNoHmGRooE MATERIAL.

T 0' all whom it may concern:

Be it known that-I, PERRY G. GARDNE a citizen of the United States, and a. resident of Rutherford,-in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements 1n Ma-' the manufacture from flexible prepared roofing material, of what are sometimes I called shingle strips, that is, strips of when the strips are laid, present the appearance of. tabs 0r shingles.

On the accompanying drawing: Figure 1 represents a machine'embodyingthe invention. Fig. 2 represents a vertical section on the line 22 of Fig. 1. Fig. 3 represents, on a larger scale, coacting-jpunch and die portions of the rolls. Fig. 1 represents a portion of the punched material.

The material which is to be passed through my improved machine, usually consists of a sheet of felt or equivalent fibrous material impregnated with a suitable relatively heavy hydrocarbon waterproofing substance such as low-m'elting-point asphalt, pitch, or the like, and coated with a relatively high-melting-point weather-proof material such aspitch or asphalt with or without pigments incorporated therein. Sometimes such roofing material is provided with an outer coating or layer of crushed .mineral.-

On the drawing, a indicates a portion of such a sheet, in which it is desired to form the transverse parallel slots 1), so that when the sheet is subsequently longitudinally cut or slit along the dotted line 0, there will be formed two similar shingle-strips each having along one edge the tabs or projections (Z, d, which, when the strips are laid in over-' lapping relation on the roof, are exposed and present the appearance of shingles or tiles.\ The method of making such shingle strips is described in Letters Patent to F. C.

Overbury, No..908,125, datedDe'cember 29, 1908.

The roofing material, because of its nature, is somewhat difficult to handle and operate upon, and when out or punched to form-' Specification of Letters Patent.

' fromthe other.

v Patented July18, 1916.

Application filed May 24, 1915. Serial N 0. 29,947.

ings are aptto accumulate and clog the machine. The present invention is shown as embodied in a machine by which the punching-may be performed continuously and expeditiously, andin which there is no danger of clogging because of the Qfojrmation'of the cuttings or punchings formed by the punching operation.

I employ two skeleton rolls indicated as a whole at ,5 and '6 respectively, the former being provided with acircular series of punches and thelatt'er with a circular series offoocperative dies. Each roll comprises a plurality of wheelsf7,'8,9 and 10, consisting 'of a circular rim,a hub, and suitably formed spokes. The "hubs of the two rolls are rigidly fastenedto, or they are formed'on shafts Hand 12 which are j ournaled in suitable'boxes'in a frame 13 of any convenient construction, the boxes 'being 'so mounted "that one of the rolls may-yield slightly away The shafts are provided with intermeshing gears 14, 15, the teeth of .which are long enough to permit the relative yielding movement of the rolls without'being unmeshed. A pulley 16 may be secured toone of the shafts to impart power thereto.

The roll '5 is provided with a series of spaced or separated longitudinal bars 17 which are segmental in cross sectionso'that their outer surfaces are concentric with" the axis of the shaft 11; and the roll 6 has similar longitudinal bars 18. Preferably 'the transverse slots, the cuttings and punchthe interrupted or longitudinally slotted periphery of the rolls, and: they are .longer than the width of the roofing sheet to be punched.

The bars 17 of the roll 5 are formed or provided with punches 19 suitably shaped to form the slots 7) in the roofing sheet, and the bars 18 of roll 6 are provided with complemental through aperturesjto constitute dies or die blocks for cooperation with the punches. Hence when the sheet of roofing is fedbetween the rolls, the punches and dies cocperate in punching out small pieces of the material and thusforming the slots 6. I have not shown any supplemental'means for feedingthe roofing sheet, but it'will be understood that the machinewhich I have described may, if desired, be located between the pressure or cooling rolls of the roofing machine, and the reel orreels on which the punchedand' longitudinally split sheet is wound, the peripheral speed of the rolls 5 and 6 being correlated to the speed of the traveling sheet. The segmental bars 17 and 18,-however, assist by their. gripping action ,upon the sheet, in feeding it and thus pro-' venting a ragged cut.

By forming the lower roll with the widely se arated' peripheral bars 18 ample space,is le t between them for the discharge of the cuttings or punchings as the roll rotates,

- for if they fallor temporarily lodge on the inner facesof the said bars, they'are dis lodged therefrom and fall through the open spaces as-the roll rotates. While I prefer the described-construction for both rolls, it is not necessary that the upper rollshould have a broken or interrupted periphery, as

I the cuttings do not reach the interior thereof. The construction which I have described possesses other advantages, sincethe. bars may be removed independently of each other from the rolls for purposes, of repair or replacement, removing the screws, bolts or other fastenings20 by which they are secured to the rims. The rolls have the inner wheels. .9 and 10 located beyond the. ends of but closely adjacent the punches'and dies so as to hold them rigidlyagainst yielding under pressure relatively to the shafts. 7

If desired I may employ a traveling belt 21, of which a portion is indicated in Fig. 2, for receiving and removing the punchings or cuttings which are discharged from the .lower or-female roll. I

Having thusexplained the nature of the invention and a machine in which the same 'maybe embodied, without attempting to set forth all the forms in which it; may be em bodied, or all the modes of its use, what I claim is: l. A machine for forming transverse slots in a' sheet of prepared roofing material comprising coacting rotary rolls,. of which one is provided with a circular series of punches, and the other of which is provided with a series of open dies adapted to permit the passage of punchingstherethrougl /the last mentioned roll consisting of a series of spaced peripheral longitudin'allyextending bars, widely separated to permit the dis charge from the interior thereof of the material.

2. A machine for 'forming'transverse slots in a sheet'of pre'p ared roofingmaterial comprising coacting rotary rolls not less in length than the width of the said sheet, said rolls being each formed with widely spaced peripheral longitudinally extendings bars, the bars of one roll being provided with punches, and the bars of the other roll-being formed with open dies arranged to permit passage of the punchings therethrough, substantiallyv as set forth.

3. In a machine of the character described, the combination with a punch roll having a circular series of punches projecting from its periphery, of a die roll having signature. a

PERRY G. GARDNER.

'punchings formed from the sheet of roofing I 

